<p>BH1750FVI Digital Light sensor module for an optical intensity sensor IC digital two-wire serial bus interface. Use of the light intensity data collection module can adjust the LCD brightness of the keyboard backlight. Resolution module can detect a wide range of light intensity.</p> <p>1, the outer diameter of 26mm, the large diameter edge 28.5mm, high 26MM (plus light beads) 2, the working voltage: DC5V</p> <p>2, the parameters</p> <p>3, Communication Interface: I2C. 4, the input light range: 1-65535lx. 5, sensitivity characteristics: Sensitivity Wavelength Typ: 560nm</p> <p>6, the light source dependence is weak: incandescent, fluorescent, halogen, white LED, fluorescent and can be</p> <p>color: White</p> <p>Material: metal + plastic</p> <p>1) I 2 C bus Interface ( f \/ s Mode Support )</p> <p>2) responsibility is approximately human eye response</p> <p>3) Illuminance to Digital Converter</p> <p>4) Wide range and High resolution. ( 1 - 65535 lx )</p> <p>5) Low Current by power down function</p> <p>6) 50Hz \/ 60Hz Light noise reject-function</p> <p>7) 1.8V Logic input interface</p> <p>8) No need any external parts</p> <p>9) Light source dependency is little. ( ex. Incandescent Lamp. Fluorescent Lamp. Halogen Lamp. White LED. Sun Light )</p> <p>10) It is possible to select 2 type of I 2 C slave-address.</p> <p>11) Adjustable measurement result for influence of optical window</p> <p>( It is possible to detect min. 0.11 lx, max. 100000 lx by using this function. )</p> <p>12) Small measurement variation (+\/- 20%)</p> <p>13) The influence of infrared is very small.</p> <p>Package Contents: 1* BH1750FVI Chip Light Intensity Light Module</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p>